Human immunodeficiency virus (HIV) and acquired immunodeficiency syndrome (AIDS) are described. HIV attacks immune cells and over time overwhelms the immune system, leading to AIDS. There are no cures for HIV or AIDS but antiretroviral therapy can slow disease progression and reduce transmission risk. Common symptoms in men include body rash, fever, sore throat and headaches, while in women symptoms include diarrhea, nausea, weight loss and shortness of breath. Nursing care focuses on preventing infection, maintaining nutrition, and managing symptoms.